diff --git a/apps/web/components/SubmissionTable.tsx b/apps/web/components/SubmissionTable.tsx
index 8f9ad563..2b5aceae 100644
--- a/apps/web/components/SubmissionTable.tsx
+++ b/apps/web/components/SubmissionTable.tsx
@@ -83,25 +83,25 @@ export function SubmissionTable({
           </TableRow>
         </TableHeader>
         <TableBody>
-          {submissions.map((submission) => (
-            <TableRow>
-              <TableCell>{submission.id.substr(0, 8)}</TableCell>
-              <TableCell className={getColor(submission.status)}>
-                {getIcon(submission.status)}
-              </TableCell>
-              <TableCell>
-                {
-                  submission.testcases.filter(
-                    (testcase) => testcase.status === "AC",
-                  ).length
-                }
-                /{submission.testcases.length}
-              </TableCell>
-              <TableCell>{submission.time}</TableCell>
-              <TableCell>{submission.memory}</TableCell>
-            </TableRow>
-          ))}
-        </TableBody>
+  {submissions.map((submission) => (
+    <TableRow key={submission.id}> 
+      <TableCell>{submission.id.substr(0, 8)}</TableCell>
+      <TableCell className={getColor(submission.status)}>
+        {getIcon(submission.status)}
+      </TableCell>
+      <TableCell>
+        {
+          submission.testcases.filter(
+            (testcase) => testcase.status === "AC",
+          ).length
+        }
+        /{submission.testcases.length}
+      </TableCell>
+      <TableCell>{submission.time}</TableCell>
+      <TableCell>{submission.memory}</TableCell>
+    </TableRow>
+  ))}
+</TableBody>
       </Table>
     </div>
   );